Gas burner



G. B. K ILLAM GAS BURNER Feb. i0; 1931.

Filed Feb. 25, 1928 am@ m25;

Wwf@ l Patent-ed Falco l@ llQl tratas eas numana i Application ler'l February 23, 19523.- Serial t'o. 256,359.

My invention relates to improvements in lourners for furnaces or other similar heating devices in which the fuel used is gas7 and the objects of my invention are to render the gas used for-fuel to loe as nearly completely comhustilole as possible; to regulate the volume of gas consumed at any time; to provide an economical sectional burnera each section having its own independent source oi lo gas supply, and each section being supplied with adjustable gas outlets capable of loeing i adjusted to loe utilized for any size or shape or fire pot; to provide a means for supplying a whirling loody oi` flame within the area lo of gas combustion so as to distribute evenly and to detain the burning gas therein as long as possible and to render the burner simple in construction with the several parts readily accessible for inspection or repair, and genzo erally to adapt the device setter to perform the functions required of ita l attain these objects by the mechanism illustrated in the accompanying drawings, in which:-

Figure l is a perspective view of the im proved burner with some oli le outlets omitted, and,

Figure 2 is a cross sectional view through a section oi the burner and one olf the gas 3o outlets.

Proceeding now to a detailed discussion oi? y the drawings and 5 designate concentric burner sections which may loe conveniently formed of suitable piping leent into oval, circular .or other desired shape. Each burner section is closed at one end by a plug 6 and is connected at the other end through an elloow 7 to a gas supply pipe 8 equipped with a control valve 9. rlhrough the agency oit au valves 9 each section of the burner may he turned on or off or otherwise regulated independently ot the other section.

Each of the burner sections is further provided with a plurality of openings l0 .in z5 which are threaded or otherwise secured the lower ends of a plurality of outlet elbows 11. The upper ends of elbows 1l are externally threaded to receive thereon the nozzles 12. Each nozzle' 12 is equipped Witha multiplicity of: air inlet passages 13 through which primary air is admitted into the here of the nozzle to mix with the gas supplied to the nozzle through the elbow ll. l he nozzle thus serves as a primary mixing chamber in which the gas is initially mixed with a -certain amount of air. l

Slidahly mounted on each nozzle l2 is a sleeve la open at hoth ends and equipped with a set screw l5 hy means of which said sleeve may he secured in adjusted position. Each @il nozzle l2 is further provided with a plurality of projecting lugs lo arranged to maintain the inner surfaces of the sleeve and nozzle in spaced relation so as to provide an intervening air passage. The upper portion oiE G5 the sleeve thus serves as an auxiliary mining chamber in which additional air is supplied to the gaseous mixture emanating from the nozzle l2 before the mixture reaches the point of combustion which is represented ley 7G the upper end ot the sleeveb lhen the sleeve is adjusted downwardly on the nozzle to bring the lower end of the sleeve slightly helow the point 12a ci" the nozzle will he apparent that the air supplied through the sleeve will he eliminated so that-prior lcomhuation the gas admitted through the elhow il is mixed only with the primary air is admitted into the hore of the nozzle through the openings il.

Betere the hurner is installed each gas outlet is properly adjusted so the mixture of gasI and air is properly proportioned to insure the most nearly complete comhustion oi gas.

The volume of heat from this burner may he regulated either by shutting od one or more sections of the burner, or by reducing the volume of gas through the various sections, by adjusting the stop cocks in the supply/,pipes leading thereto.

lt will thus he seen that in this burner l secure economically a wide range of heating capacity from a very low to a very high degree; a high degree of combustion eciency through the medium of a proper gas and air mixture; a burner which is quickly and easily adjustable to fit varying sizes and shapes of lire pots, by simply altering the direotionof the various gas outlets; a burner in which a whirling flame of great intensity can be produced within the furnace, which tends to distribute the heat evenly and to prevent it becoming dissipated so quickly.

I am aware that, prior` to my invention, gas burners have been made with sectional construction and with means for adjustably regulating the primary air supplied to the gas before the point where the combustion takes place is reached.

I therefore do not claim such a combination broadly, but what l claim as my invention, and desire to secure by Letters Patent 1s:-

l. A burner comprising a revolvably mounted nozzle inclined with respect to its axis of revolution and formed with inlet openings for the admission of air and gas into the bore of the nozzle, a sleeve slidably mounted on the nozzle, there being an air passage reserved between the inner surfaces of the sleeve and nozzle and means for securing the sleeve to the nozzle with the outer end projecting beyond the tip of the nozzle to provide an auxiliary air and gas mixing chamber to which air is admitted through the passage reserved between the sleeve and the nozzle.

2. A burner equipped with a nozzle revolvable about a vertical axis and inclined with respect to saidaxis, said nozzle being provided with openings for the admission of gas and air into the bore of the nozzle, a sleeve slidably receiving the nozzle therethrough, sleeve engaging lu s carried by the nozzle and arranged to a low air to pass between the inner surfaces of the sleeve and nozzle in a direction to mix with the gaseous mixture emanating from the tip of the nozzle and a set screw carried by the sleeve and engageable with the nozzle to secure the sleevein various predetermined positions of adjustment.

3. A gas burner comprising a plurality of concentric burner sections plugged at one end, separate gas supply pipes connected to the remainin ends of said sections, a control valve in eac gas supply pipe, a series of nozzles projecting upwardly from each burner section and mounted to rotate about a vertical axis, each nozzle being inclined with respect to its axis of rotation and being provided with passages placing the inner end of the bore of the nozzle in communication with the atmosphere and with the interior of the burner section carrying said nozzle.

4. A gas burner comprising a plurality of sections, an independent gas supply means for each section, a multiplicity of revolvably adjustable inclined gas outlets and means for providing an initial and an auxiliary supply of primary air to be mixed with the gas before the point of ignition of l the gas is reached.

burner sections, each section having an independent source of gas supply, a multiplicity of gas outlets carried by each section, and an initial and an auxiliary source oi primary air for the gas mixture associated with each gas outlet tor the purpose specified.

6. A gas burner equipped with a rotatably mounted gas outlet elbow, a nozzle secured to the elbow to receive the gas therefrom, said nozzle being provided with passages arranged to admit air into the bore of the nozzle to mix with the gas therein, a sleeve slidably mounted on the nozzle on such manner as to reserve an air passage between the inner surfaces of the sleeve and nozzle, said sleeve being adjustable to a position cutting oil the passage of air between the sleeve an the nozzle or to a second position forming an air and gas mixing chrmber beyond the outer end of the nozzle, the air being admitted to the chamber through the passage reserved between the sleeve and the nozzle.

7. A gas burner comprising a nozzle having an opening extending therethrough, one end of the nozzle being adapted to be connected with a source of gas under pressure, a portion of the opening between the delivery end and its connection with the source of gas being of smaller diameter than the opening in the delivery end thereof, the Wall of the nozzle having air inlet openings on the delivery side of the opening of smaller diameter, a sleeve connected with the nozzle and projecting beyond the tip thereof, the outside diameter of the delivery end of the nozzle being smaller than-the inside diameter of the sleeve whereby an air passage is formed between the two, there being air inlets for admitting air into the space between the sleeve and the nozzle.

8. A gas burner comprising, a nozzle having a central opening, one end of which is adapted to be connected with a source of gas under pressure, the opening having a section of smaller diameter than the opening at the delivery end whereby a shoulder is formed, the wall of the nozzle having openings that connect the interior adjacent the shoulder with the surrounding air, a sleeve movably connected with the nozzle, the inside diameter o the sleeve being greater than the outside diameter of the nozzle whereby an air space is formed between the two, there being air passages for connecting the airspace with the surrounding air.

9. Aburner comprising a nozzle formed with inlet openings for the admission of air and gas into the bore of the nozzle, a sleeve slidably mounted on the nozzle, there being an air passage reserved between the inner surfaces of the sleeve and nozzle and means for securing the sleeve to the nozzle with the outer end projecting beyond the tip of the nozzle to -provide an auxiliary air and gas mixingv chamber to which airis admitted fio wensen through the passage reserved between the sleeve and the nozzle.

l0. A gas burner comprising a burner section connected with a. source of gas supply, a 'multiplicity of gas outlets carried by the section and an initial and auxiliary source of primary air for the gas mixture, associated with each gas outlet for the purpose specified. i* l l l1. A blrner comprising a nozzle having an open outlet at one end and openings at the other end for the admission of gas and an initial supply of air, which nass through the vopen ontiet end thereof, a nozzie having openend ier-ward oi tie open end of irst said nozzie and leaning its rearwardly extending waii surrounding said iirst nozzle with means for admitting an auxiliary supply of air thereto, said nozzles and initial and auxiliary air admission means being so proportioned that combustion of the air and gas mixture takes piace wholly outside of said burning nozzle under normal operatinoconditions of the burner.

12. A tliurner comprising anozzie having an open outlet at one end and openings at the other end for the admission of gas and an initial suppiy of air which pass through the open outlet end thereof, and a burning nozzle havin an openend forward o the,

open end of t e rst said nozzle and having its rearwardly extending'wali surrounding said first nozzle with means for admitting an auxiliary supply of air thereto tothe rear of said open end of said rst nozzle, said nozzles and initial and auary air admission means being so proportioned that combustion of the air and gas mixture takes place Wholly outside of said burning nozzle glider normal operating conditions oir the urner.

In testimony whereof ll hereunto my l signature. Y

GASTN BRGNN 

